On Wed, Sep 16, 2015 at 7:54 AM, Mark Lawrence <breamore...@yahoo.co.uk> wrote:
> > Assuming your (Alan's) guess is correct, and I certainly agree it's > plausible, I suspect this might be better asked on the main Python mailing > list, I don't see this as tutor material. > > Sorry first time posting to tutor / general list. Usually on TIP list. As per Mark's recommendation, now posting to python-list@python.org. <python-list@python.org> On Wed, Sep 16, 2015 at 6:56 AM, Alan Gauld <alan.ga...@btinternet.com> wrote: > > You don't actually specify but I'm guessing VM > means Virtual Machine? Is it a specific type > of VM? eg VMWare/VirtualBox or somesuch, or is > it more of a sandbox environment like virtualenv? > That might help us understand the restrictions better. In my case my underlying functions will use boto (Amazon Web Service's Python SDK) but I thought to abstract the details away from posting because as you know I want to simply return an object. But yes, boto will simply return the call with a response object. For example, to create an RDS database, the call is returned and I will to query for the status of the database before I can perform further actions to the instance such as changing password (which is covered in the modify_vm function call). But creating VM such as EC2 has an equal synchronous nature. I would be tempted to use an asynchronous approach with a > when_ready() function that takes my function as an input > parameter. You could then run the when_ready in a thread > or, I suspect, utilize the asyncio or asyncore modules, > although I haven't tried using them for this kind of > thing myself. > The bottom line is you need to wait for the status to > change. How you do that wait is up to you but you can > make it more readable for the user. The easier it is for > the user the harder it will be for you. > > Sounds like to make it readable and user friendly, also to have separation of concern, I almost am locked into implementing in OOP style. Imperative seems to be okay but lack the "shininess." Thank you. John
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